Author Topic: 68 master cylinder rebuild - sanity check on options  (Read 160 times)

sabino56

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68 master cylinder rebuild - sanity check on options
« on: September 03, 2019, 02:26:40 PM »
I working to repair brakes on 68 coupe - manual drum all around.
I've read the many, many posts on this, inability to get secondary piston, need to ensure I have RPVs, etc. and just asking for sanity check on options.

I have a 5452310 MC on the car but it's not the right application - an "AB" stamped instead of "BS" and it does not have the RPVs.
I can get the secondary piston from a reman but even if the reman has RPVs I'll need new seats to get them out and it seems seats only come with rebuild kits (minus the secondary piston).  So seems I'd have to buy the rebuild kit (can't find source for Raybestos MK472 anymore - RockAuto doesn't carry it. But I can get it from Napa)  + take the secondary from a reman.  If anyone has recent experience on better sources - I'd appreciate it.

For new MC
I'm not trying to get perfect date coded car restored but I'd like it to look right. I can't stand the new MCs with stupid bold on top and won't put it on my car. I've looked around and Heartbeat City has something which looks reasonable. ClassicIndustries has something which looks like a casting for bleeders but without bleeders so I don't like that one.  If anyone has recent experience on source for reasonable looking manual drum I'd appreciate that too.

I could resleeve - I checked Apple and White Post which have good reviews.  Since the MC I have isn't really correct/original to car anyway, not sure I want to spend the money to preserve it.

Thanks!
Ed

Kelley W King

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Re: 68 master cylinder rebuild - sanity check on options
« Reply #1 on: September 03, 2019, 05:19:53 PM »
White Post has my vote. Lifetime warranty.
69 Z28 RS Scuncio Hi Performance
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bertfam

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Re: 68 master cylinder rebuild - sanity check on options
« Reply #2 on: September 03, 2019, 06:36:32 PM »
If you have manual drum brakes, you shouldn't have the bleeders anyway. You can either have yours sleeved, go with aftermarket (new or rebuilt), or find the correct BS coded master (without bleeders) and have it sleeved/rebuilt.

Ed
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KurtS

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Re: 68 master cylinder rebuild - sanity check on options
« Reply #3 on: September 03, 2019, 09:22:55 PM »
Look on ebay, lots of people remove the drum system and will sell the old parts....
Kurt S
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z28z11

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1968 Z28 M21/U17 BRG/W
1969 Z28 X77/M20/VE3 LeMans/W
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1969 Z11 L48/M35/C60/C06

sabino56

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Re: 68 master cylinder rebuild - sanity check on options
« Reply #5 on: September 04, 2019, 02:06:11 PM »
Thanks for the advice and comments. Thought I donít think Iíll pop for that CT coded MC for this car! wow.

Iím leaning towards having White Post resleeve the one I have if I donít find a reasonable BS coded MC in short time. So far, what I have looks like a better core than what Iíve found and this is not going to be a car I take to have judged - just putting it together to have fun.
Thanks again
Ed